Several moves and abilities (notably those involving "Dancer" and "Receiver") received under-the-hood fixes to ensure they interact correctly on the Battle Spot.
While the actual Pokémon data was in the base game, v1.2 unlocked the proper distribution flags for several event-exclusive Z-Crystals and allowed compatibility with the "2018 Legends" distribution codes.
A notorious glitch in the Alola Photo Club where certain stickers would corrupt the save file was patched out in v1.2. pokemon ultra sun v1.2 cia
In the sprawling history of Pokémon, Ultra Sun and Ultra Moon occupy a strange twilight zone. Released in 2017 as enhanced "third versions" split into a pair, they were overshadowed by the monumental leap to Pokémon Sword and Shield just two years later. Yet, for a dedicated segment of the fanbase, the game remains alive and well—specifically, in the form of the v1.2 CIA.
To the uninitiated, a “CIA” is not a spy agency in this context, but a file format used by the Nintendo 3DS. It stands for CTR Importable Archive—a digital container that allows games and updates to be installed directly onto a modded 3DS’s SD card. And for those who have chosen to preserve their 3DS library outside the bounds of the now-defunct eShop, the Pokémon Ultra Sun v1.2 CIA is the definitive way to experience Alola. In the sprawling history of Pokémon, Ultra Sun
The version 1.2 update, released in early 2018, wasn't a mere bug fix. It was the game’s final competitive patch. It added support for the newly discovered Ultra Beasts (Blacephalon and Stakataka), tweaked move animations, and—most critically—implemented the data for the Zeraora event. Without v1.2, players cannot legitimately (or illegitimately) access the mythical thunder cat.
For the archivist and the competitive battler, this update is non-negotiable. It stabilizes online connectivity (even on pretender servers), fixes the notorious Lumiose City save glitch’s spiritual successor in Heahea City, and balances a handful of Z-Move interactions. To the uninitiated, a “CIA” is not a
Before we proceed, let's clarify the terminology.